A couple heterozygous for albino genes have normal skin colour. What is the probability that their child would be an albino?
A couple heterozygous for albinism (both Aa), has a 1 in 4 (25% or 0.25) probability of having an albino child (aa). Because albinism is an autosomal recessive disorder, the child must inherit the recessive allele (a) from both parents to exhibit the condition.
Key Genetic Probabilities:
Aa)
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